Feeding and forming mechanism for wrapping-machines



C. J. LIETZ.

FEEDING AND FORMING MECHANISM FOR WRAPPING MACHINES.

APPLICATION FILED FEB-13,1920.

Patented July 12, 1.9211,

3 SHEETS-SHEET l- C. J. LIETZ.

FEEDING AND FORMING MECHANISM FOR WRAPPING MACHINES.

APPLICATION FILED FEB.13. I920.

4, Patented July 12,1921,

3 SHEETS-SHEET 2- wi 1 YEP? 6447 05 (IL a 65% a a C. I. LIETZ.

FEEDING AND FORMING MECHANISM FOR WRAPPING MACHINES.

APPLICATION FILED FEB-13, I920.

1,384, 1 98, Patented July 12, 1921,

3 SHEETS-SHEET 3- 0% 1 565 JL eZz entree rare FFHC CHARLES E. LIETZ, OFNEWARK, NEVT JERSEY, ASSIGNOR TO IDEAL WRAPPING MACHENE COMPANY, ACORPORATION OF NEW YORK.

FEEDING AND FORMING- MECI-IANISMI FOR WRAPPING-MACHINES.

Original application filed March 17, 1917, Serial No. 155,420. Dividedand. this application filed February Specification of Letters Patent.

Patented July 12, 1921.

13, 1920. Serial No. 358,479.

form a part of this specification.

This application constitutes a division of my co-pending application forpatent for Wrapping machine, filed March 17, 1917, Serial No. 155,420.

This invention relates particularly to the mechanism which operates toeject or feed articles from a transfer or feed belt through a formingbox which acts to truethe article to shape before passage thereof into acarrier wheel of the wrapping machine, which during the travel of thearticle causes a wrapper to be folded thereon.

It is an object, therefore, of this invention to provide a mechanismhaving timed operation with the other mechanisms of a wrapping machineoperating to transfer an article from a feeding belt by sudden impulseto and through a forming box and, together with a sheet of wrappingmaterial, place the article into a carrier wheel of the wrapping machinefor. application of the wrapper thereon.

Other and further important objects of this invention will be apparentfrom the disclosures in the drawings and specification.

The invention (in a preferred form) is illustrated in the drawings andhereinafter w more fully described.

Drawings.

'through with parts in elevation.

Fig. 3 is an enlarged View from the opposite side of certain of themechan sm shown in Fig. 1.

Fig. 4 is a sectional detailv with parts in elevation on line'-t of Fig.2.

Fig. 5'is a sectional detail on line 5-5 of Fig. 1.

Fig. 6 is a top plan View of the mechanism shown in Fig. 2.

Fig. 7 is a sectional detail on line 7-7 of Fig. 2.

Fig. 8 is a sectional detail on line 8-8 of Fig. 1.

Description.

The frame extension of the wrapping machine to which the mechanismcomprising the present invention is attached is denoted as a whole bythe reference numeral 1 and secured thereto is a hollow casting 2 with ashelf extension 3 at the forward end there. of. Mounted upon sald shelfextension is :wardly, and said plate at its rear end is provided withdownwardly extending arms 7 which, as clearly shown in Figs. 1 and 5form a fork for a pivotal connection of said plate by means of pintle 8extending through the forward end of a rectangular frame or casting 9secured upon the upper surface of said hollow casting 2. I

Mounted in a beveled slot in said plate 6 is a roller 10 of a diametergreater than the width of the slot so as to rest therein, and aresilient hearing or spring member 11 is secured upon the upper surfaceof the plate 6 and bears upon the said roller to confine the roller insaid slot. Pivotally connected at the rear end of the plate 6 is athreaded I rod 12 which extends through a notched lug 13 formed orsecured upon the top plate surface of the side walls of the forming boxa.

This yieldable plate 6 allows for any variation in size of the cube ofcandy. If the piece is too large the plate will be pressed upwardly toform a larger mold, thus preventing any jamming of the candy that wouldrender the device objectionable and allow the sticky candy to adhere tothe operating parts. ,Attached against the forward end of the plate 6 isa bar 18 affording a breaker strip and guide for the wrapping materialintroduced in front of the forming box. A similar bar 19 is attachedagainst the front edge of the forming box 4: to receive the paperwrapper introduced therebetween. The article feed belt denoted by thereference numeral 20 travels beneath the plate 6 and in front of theentrance to the forming box 4, as shown in Fig. 1. A plunger 21 isslidable through the frame 9 and is provided with a striking head 22 atits forward end. Formed on the under side of said plunger 2 is a rack 23and meshing therewith is a sector gear 24 secured upon a shaft 25 whichis journaled transversely through the lower portion of the casting 2.Also secured upon said shaft 25, as shown in Fig. 7, is a crank 26 towhich a link 27 is connected and said link 27 is also connected to ablock 28 formed on or secured upon a slide bar 29 which is slidablelongitudinally through the lowerportion of the casting 2. A link orlever 13 is connected to the forward end of the slide bar 29 and leadsforwardly and is connected to suitable reciprocating mechanism forming apart of the wrapping machine. A bell crank having one arm 31 providedwith a roller 32 is journaled in the casting 2 and said roller 32engages in cam groove 33 of the block 28 and the other arm 34 of saidbell crank extends downwardly below the frame casting 2 and is adaptedto be utilized for the operation of other mechanisms. Said slide bar 29is supported upon plates 35 attached on the under side of the casting 2at each end thereof. The operation of said slide bar forward and backserves to trans mit an oscillatory or reciprocating movement to the gearsector 24 through the block 28, link 27 and lever 26 connected on theshaft 25.

Operation.

' rence to take place is operation of the slide bar 29 forwardly, whichby means of the block 28, link 27, crank 26, and shaft 25, operates thegear sector 24: forwardly, which meshing with the rack 23 of the plungerbar 21 causes a sudden forward movement of the plunger. The plunger head22 strikes the caramel from the carrier belt 20 forcing it quicklythrough the forming box 4 between the convergent walls thereof and beingbox 4 and at this instant it strikes the.

sheet of wrapping material 36 which at this instant is severed from itscontinuous strip portion by a cutting mechanism 37 properly operated atthis instant by the mechanisms which formnopart of the presentinvention. The bars 18 and 19 between i which the wrapper is trainedserve to break the same over and beneath the caramel as it is thrustoutward therepast by its plungerand against the slidable plunger 38 ofthe carrier pocket 39 in the wrapping wheel 40 of the wrappingmachine.The plunger 38 is thrust inwardly in the pocket 39 and the caramel withits wrapper is seated thereagainst 'and immediately afterward theplunger 2121 is retracted and movement-of the carrier wheel 40 takesplace to cause application and folding of the wrapper; 36 around theobject.

The roller 10 of the .forming mechanism I through which the caramel ispassed exerts a resilient rolling effect on the top surface of thecaramel to give it proper shape, if not already in proper'form, andfurther'the top plate 6 by which said roller is carried and beneath theforward end of which the caramel subsequently passes is also heldyieldably down by its spring 17, the compression effect of which isadjustableto suit.

requirements by the knurled head 16.: The top plate 6 may be swungupwardly, to give access to the parts for cleaning or repairing, byrelieving the stress on the spring 17 and raising the rod 12 upwardlyout of. the notched lug 13, thus permitting the plate 6 to swing freelyupwardly on its pivoted forked arms 7.

I am aware that numerous details ofconstruction may be varied through avwide.

range without departing from the principles of this invention, and Itherefore do not purpose limitlng the patent granted otherwise thannecessitated by the prior art.

Claims.

1. The combination with a wrapping machine, of a forming box forarticles passed therethrough and resilient mechanism forming a part ofsaid forming .box to bear yieldably upon the article. 3

2. The combination with a wrapping ma chine, of a forming mechanismtogive shape to articles passed therethrough, said mechanism comprisingyieldable rolling means to shape the articles.

3. In a candy wrapping machine, a forming box having a yieldable side,and a yielding rolling member projecting through said side.

4. In a candy wrapping machine, the combination with the mechanism forwrapping pieces of candy, and the feed mechanism thereof, of a yieldableforming mold through which the pieces of candy are adapted to be passed.

5. In a candy wrapping machine, in combination with the mechanism forwrapping pieces of candy, a forming box for said pieces of candy havinga yieldable side, and yieldable means for tilting the said side.

6. In a candy wrapping machine, in combination with the mechanism forwrapping pieces of candy, and the feed mechanism thereof, of astationary forming box having a yieldable side for forming cubes ofcandy having variable dimensions.

7 In a candy wrapping machine, in combination with the mechanism forwrapping pieces of candy, a stationary forming box, a conveyer passingthrough a portion of said box, and a plunger adapted to passlongitudinally into said forming box.

8. In a candy wrapping machine, the com bination with the feedingmechanism, of a yieldable forming mold, and a rolling element projectingthrough said mold.

In testimony whereof I have hereunto subscribed my name in the presenceof two subscribing witnesses.

CHAS. J. LIETZ.

Witnesses:

O. B. FELLOWS, CHARLES W. MOORE.

